With the advanced development of society. there are lots of poker have to wear the glasses as they are nearsighted. Most of them can not work if they have not glasses. Some of poker players need to wear the glasses also.
So we have produced a luminous ink glasses for them. The appearance of this luminous ink glasses is same as normal glasses. The different is that this invisible ink special glasses can be used for seeing the luminous ink on the back of marked playing cards. The luminous ink marks on back of marked poker cards can not be seen with our naked eyes but can be seen by our perspective luminous glasses.
Marked cards glasses not only can be used for detecting whether other poker players use the same back marked cards as you, but also can be used for checking the environment before you start to playing poker game.